Home / 3,974.13-5,961.20-1,238.13

Finding the Fourth Proportional to 3,974.13, 5,961.20 and 1,238.13

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Solution

The fourth proportional to 3,974.13, 5,961.20 and 1,238.13 is: 1,857.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,974.13 : 5,961.20 = 1,238.13 : x
  2. Step 2: Convert to fraction form
    3,974.13/5,961.20 = 1,238.13/x
  3. Step 3: Cross multiply
    3,974.13x = 5,961.20 × 1,238.13
  4. Step 4: Simplify right side
    3,974.13x = 7,380,740.56
  5. Step 5: Solve for x
    x = 7,380,740.56/3,974.13
  6. Step 6: Final answer
    x = 1,857.20

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.